Multidimensional array question

PhpBizz

Can Php do multidimensional arrays as follows:

$arr['zzz']['ttt'] = "hello";
$arr['zzz']['ade'] = "there";
$arr['zzz']['asdf'] = "you";
.
.
$arr['xxxx]['aaa'] = "he";
$arr['xxxx']['bbb'] = "was";
$arr['xxxx']['ccc'] = "your";

Where both keys are strings and values are strings

If so...
How can I iterate through this array printing out all keys and values?

Thank you

rheinen

Yes, php can handle multidimensional ways.

If you just want to examine the contents of the array try [FONT=Courier New]print_r($arrayname)[/FONT] or [FONT=Courier New]var_dump($arrayname)[/FONT] but if you'd like to manipulate or control the display of the array you could foreach.

If you know the number of dimensions (in this example: 2) simply nest that many foreach loops:

[FONT=Courier New]// for each $dim1 (the first dimension of our array)
foreach ($arrayname as $dim1) {
[INDENT] // for each $dim2 (the second dimension of our array
foreach ($dim1 as $dim2) {
[INDENT] print $dim2 . '\n'
...[/INDENT]
}[/INDENT]
}[/FONT]

If you don't know the number of dimensions you could set up a recursive function to test if it's argument is an array (is_array) and if so recurse with each element in the array, if not then print out it's value and return.

If you want the keys make sure to use the syntax
[FONT=Courier New]foreach ($arrayname as $key => $value)[/FONT]

Ryan

PhpBizz

Can you give me an example with code?

Lets try this data:

$cfg['server1']['port'] = "80";
$cfg['server1']['name'] = "happygilmore";
$cfg['server2']['owner'] = "jj";
$cfg['server2']['time'] = "10:40:00";
$cfg['server3']['patch'] = "onemississipi";
$cfg['server3']['space'] = "none";

Assume I don't know the number of dimensions (keys) in both the first and second dimension. The desired output is:

server1
{
port: 80;
name: happygilmore;
}

server2
{
name: jj;
time: 10:40:00;
}

server3
{
patch: onemississipi;
space: none;
}

jernhenrik

Rheinen almost did that, did you try yourself?

PhpBizz

jernhenrik wrote:
Rheinen almost did that, did you try yourself?

Yes I did and it didnt work.

foreach ($cfg as $key1 => $value)
{
$output .= $key1 . " {" . "\n";

// couldnt get second loop to work

$output .= "}" . "\n";

}

jernhenrik

Ok - the second loop would need to iterate on the $value variable
ie.

.....
  //loop in the middle
  foreach ($value as $key2 => $value2)
  {
      $output .= $key2.':'.$value2.';';
  }//end loop in the middle
......

PhpBizz

Ok I think I see the syntax and relationship now with the =>

Thank you